Because I have no life and am a perfectionist to the core.
I redid the specular map for the secondary hull section (I found out that the previous renders were referencing an old JPEG of the saucer specular, so I went back into Photoshop and created a higher resolution and proper spec map from the colour texture).
I also scaled up the running lights and fixed their blinking cycle so it's more to canon.
Also used Final Gathering. I'm not sure if it made things look better, but it didn't take really any longer to render.
Click on the the little gear on the bottom right to playback at HD resolution!
Rendered at 720HD with MentalRay as a tif sequences, gamma-corrected and converted into QuickTime through AfterEffects.